public static byte[] getBytes(ChecksumInputType checksumInputType, string input, Error error)
{
EncodingUtil eu = new EncodingUtil();
byte[] aux = null;
switch (checksumInputType)
{
case ChecksumInputType.BASE64:
try
{
aux = Base64.Decode(input);
}
catch (Exception e)
{
error.setError("CI003", e.Message);
}
break;
case ChecksumInputType.HEX:
aux = SecurityUtils.GetHexa(input, "CI004", error);
break;
case ChecksumInputType.TXT:
aux = eu.getBytes(input);
if (eu.HasError())
{
error = eu.GetError();
}
break;
case ChecksumInputType.ASCII:
try
{
aux = new ASCIIEncoding().GetBytes(input);
}
catch (Exception e)
{
error.setError("CI004", e.Message);
}
break;
case ChecksumInputType.LOCAL_FILE:
aux = SecurityUtils.getFileBytes(input, error);
break;
default:
error.setError("CI006", "Unrecognized checksum input type");
break;
}
return(aux);
}
public string GenerateChecksum(string input, string inputType, string checksumAlgorithm)
{
ChecksumInputType chksumInputType = ChecksumInputTypeUtils.getChecksumInputType(inputType, this.error);
byte[] inputBytes = ChecksumInputTypeUtils.getBytes(chksumInputType, input, this.error);
if (this.HasError())
{
return("");
}
ChecksumAlgorithm algorithm = ChecksumAlgorithmUtils.getChecksumAlgorithm(checksumAlgorithm, this.error);
if (this.HasError())
{
return("");
}
return((ChecksumAlgorithmUtils.isHash(algorithm)) ? CalculateHash(inputBytes, algorithm)
: CalculateCRC(inputBytes, algorithm));
}
public static string valueOf(ChecksumInputType checksumInputType, Error error)
{
switch (checksumInputType)
{
case ChecksumInputType.BASE64:
return("BASE64");
case ChecksumInputType.HEX:
return("HEX");
case ChecksumInputType.TXT:
return("TXT");
case ChecksumInputType.ASCII:
return("ASCII");
case ChecksumInputType.LOCAL_FILE:
return("LOCAL_FILE");
default:
error.setError("CI002", "Unrecognized checksum input type");
return("");
}
}
